When CH3CH2MgBr reacts with CO2 then which of the following product is formed?
Correct answer: C. CH3CH2COOH
- A. CH3CH2CH2CH2OH
- B. CH3CH2CH2OH
- C. CH3CH2COOH
- D. CH3CH2CH2Br
Explanation
Grignard reagents will add to carbon dioxide, forming carboxylate salts. After acidic work-up, carboxylic acids are formed. A Grignard reagent can react with carbon dioxide (usually in the solid form known as "dry ice") to produce a carboxylic salt, which upon protonation by aqueous acid yields the carboxylic acid. This reaction is a common method for preparation of carboxylic acids.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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